Granted Patent
Utility
US 6,483,230 · App. 09/743,626
High pressure metallic vapor discharge lamp
Inventors:
Shigefumi Oda, Hiroshi Nohara, Yoshiharu Nishiura, Shiki Nakayama, Takashi Yamamoto, Masanori Higashi
Patented Case
View Patent ↗
Granted: Nov 19, 2002
Filed: Jan 12, 2001
Inventors
Shigefumi Oda
Hiroshi Nohara
Yoshiharu Nishiura
Shiki Nakayama
Takashi Yamamoto
Masanori Higashi
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.